一个51MCU.电压0~5V输入转PWM输出控制的原代码.

显示： “欢迎使用"， "单片机实验系统" lcd显示汉字-shows : "Welcome," "SCM experimental system" LCD display Chinese characters

全量程交直流无档电压表的设计 这里只给出了系统设计的方案 带有程序流程图-Wide-range AC-DC voltage meter free stall design here only gives the system design program with a program flow chart

擦除DS12C887时钟芯片的内部数据存储空间-Erase the internal clock chip DS12C887 data storage space

基于运动控制卡的步进电机控制系统非常有价值哦

C8051f340的UART程序，开发环境Silicon IDE-C8051f340 the UART procedures, Silicon IDE development environment

DS18B20 单线数字温度计指南,除硬件结构介绍外,还包含有汇编语言源代码及C语言源你码,是一个很不错的开发参考资料.-Single-wire digital thermometer DS18B20 Guide, in addition to the hardware structure of introduction, it also contains the source code in assembly language and C language source your code, is a very good development of reference materials.

LM3033液晶驱动程序，来自topway，128×64驱动程序-LM3033 LCD driver, from topway, 128 × 64 driver

急救车与交通灯）（1）南北与东西方向，每个方面由红黄绿三个灯控制（2）南北向：　红（30秒），黄（5秒），绿（25秒）　　　东西向： 红（35秒），黄（5秒），绿（25秒）　　　上述基本参数可以根据实际情况自行调整，灯的变化规律与实际路口规律相同，绿灯在最后5秒钟时，黄灯亮，然后红灯亮，不允许两个方面同时亮绿灯。（3）绿灯的时间显示在数码管上进行显示。（4）可以通过一个开关控制，当开关信号为0时，整个交通灯全灭提高要求：（1）设计一个紧急控制开关信号，当紧急开关信号为1时，两个方向的灯全为红灯。紧急开关撤消后，按照开关按下之前的状态继续运行（其参数要保存）。（2）设计一个夜间行车开关，当开关按下后，两个方向都只有黄灯闪烁，其它灯熄灭。（3）设计两个方向的亮时时间可调。-emergency vehicles and traffic lights) (1) North and South and east-west direction, each with three yellow-green from red lights control (2) to the north and south : red (30 seconds), yellow (5 seconds), Green (25 seconds) to things : red (35 seconds), yellow (5 seconds) Green (25 seconds) above basic parameters can be adjusted to the actual situation, the light changes with the actual law of the same intersection, the green light in the final five seconds, the yellow light is on, and then a red light, bright, not two fronts simultaneously bright green. (3) the green light at the time displayed on the digital display control. (4) can be controlled by a

这个是由MSP430 单片机实现控制的可以转为显示的日历系统 功能稳定-MSP430 can achieve control of the calendar to show the stability of the system function

：介绍一种无人值守的停车场管理系统的设计。该系统前端主要由GsM 短信模块TC35i和AVR 单片机At― megal6组成，安装在停车场的每个进出口，通过接收车主的手机短信控制进出口道闸的开启并由短信扣取停车费用，各进出 口电路都与监控中心计算机连接。-: A unmanned car park management system design. The system front-end GsM messages by AVR module TC35i and At-megal6 composed of single-chip installed in the parking lot of each import or export through SMS to receive the owner to control the import and export of道闸open parking fees deducted by SMS , the import and export of circuits are connected with the monitoring center computer.